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Finding the Fourth Proportional to 478,835.19, 660,825.33 and 292,646.67

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Solution

The fourth proportional to 478,835.19, 660,825.33 and 292,646.67 is: 403,872.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,835.19 : 660,825.33 = 292,646.67 : x
  2. Step 2: Convert to fraction form
    478,835.19/660,825.33 = 292,646.67/x
  3. Step 3: Cross multiply
    478,835.19x = 660,825.33 × 292,646.67
  4. Step 4: Simplify right side
    478,835.19x = 193,388,332,276.15
  5. Step 5: Solve for x
    x = 193,388,332,276.15/478,835.19
  6. Step 6: Final answer
    x = 403,872.43

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.